Abramites eques, also known as headstander, picúo, or sardina, small teleost fish and is a member of the family Anostomidae of the order Characiformes.

[2] This South American species, like Abramites hypselonotus, adopts a head-down swimming posture due to its distinct feeding habit, which is a direct result of the locals that it frequents.

Like its relative, Abramites hypselonotus, the picúo generally inhabits shallow, fast-moving rivers and streams, and refers rocky bottoms.

Hardy plants like the Java fern should survive, but the addition delicate species should be avoided.

[1] While it has been assessed to the level of Least Concern by the IUCN, a number of threats to wild picúos still exist such as mining and quarrying, deforestation in its home watershed, and dredging of waterways.